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Toyo
Toyo TOY Observe GSI-6 185/60R15
Toyo TOY Observe GSI-6 185/60R15
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Looking for a 185/60R15 performance winter tire? The Toyo Observe GSI-6 is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 185/60R15 means
In the size 185/60R15, 185 is the section width in millimeters (7.28 in), 60 is the aspect ratio — the sidewall stands 60% as tall as the tire is wide, or 111.0 mm (4.37 in) — R denotes radial construction, and 15 is the wheel diameter in inches. That works out to an overall diameter of about 23.74 inches, turning roughly 850 revolutions per mile. Overall diameter is what matters for speedometer accuracy and clearance when you change sizes, so compare it — not just the width — against your current tire.
The manufacturer lists the overall diameter of this specific tire as 15 inches — when clearance is tight, go by the published figure rather than the nominal size math.
The service description on this tire decodes to a load index of 84 — a maximum load of 1,102 lbs per tire. The speed symbol H corresponds to a maximum sustained speed of 130 mph.
Specifications
| Size | 185/60R15 |
| Tire Type | Performance Winter |
| Service Description | 84H |
| Load Index | 84 |
| Speed Rating | H |
| Load Range | SL |
| Section Width (mm) | 185 |
| Aspect Ratio | 60 |
| Overall Diameter (in) | 15 |
| Tread Depth (/32") | 11 |
Frequently asked questions
What kind of tire is the Toyo Observe GSI-6?
The Toyo Observe GSI-6 in 185/60R15 is a performance winter tire.
Will 185/60R15 tires fit my vehicle?
Check the size molded into your current tire's sidewall or the tire placard inside the driver's door jamb — if it reads 185/60R15, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 185/60R15 tire in stock to compare options.
What does 84H mean on the Toyo Observe GSI-6?
84H breaks down as load index 84 — rated for 1,102 lbs per tire — with an H speed rating, good for a maximum sustained 130 mph.
Keep shopping
Shop all 185/60R15 tires, see every Toyo Observe GSI-6 size, explore winter snow tires, or view all tires at ThreePiece.us.
- Brand:
- Toyo
- Model:
- TOY Observe GSI-6
- Size:
- 185/60R15
- Aspect Ratio:
- 60
- Load Index:
- 84
- Load Range:
- SL
- Section Width:
- 185
- Service Description:
- 84H
- Speed Index:
- H
- Temperature:
- N/A
- Tire Rim Diameter:
- 15
- Tire Type:
- Performance Winter
- Traction:
- N/A
- Tread Wear:
- N/A
- Tread Depth:
- 11
- UQTG:
- N/A
- Warranty:
- N/A
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